In this CNBC Africa Special Chris Bishop is joined from Washington DC by one of the big names in African finance and economics, who now has a key job in helping this continent survive the COVID-19 pandemic. Her name is Ngozi Okonjo-Iweala – the former finance minister of Nigeria who was appointed by the African Union this year as a special envoy. Her job is to gather international support for Africa’s fight against the COVID-19 pandemic….